Files
netwatch/backend/internal/reportbuf/reportbuf_test.go
T
clawbot 503399e020
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fix(backend): report ingest correctness: 500 on a refused report, 413 on oversize, global body cap (closes #23)
A report the buffer refuses now returns 500 instead of a false `ok`.
Reports reach disk later, so a failed disk write is still answered 200
and shows in the log, and at shutdown as a failed stop with a non-zero
exit. An over-limit body returns 413; malformed JSON stays 400. A
MaxBodyBytes middleware caps every route at 1 MiB; a route group can
only lower that limit. The raw geo blob is no longer logged; client_id,
timestamp and decode error text are cut to 128 bytes before logging.
Panic recovery logs the panic value and stack through slog.

Model: opus-5-5
2026-09-28 20:39:39 +02:00

120 lines
2.6 KiB
Go

package reportbuf_test
import (
"errors"
"io/fs"
"os"
"strings"
"testing"
"sneak.berlin/go/netwatch/internal/config"
"sneak.berlin/go/netwatch/internal/globals"
"sneak.berlin/go/netwatch/internal/logger"
"sneak.berlin/go/netwatch/internal/reportbuf"
"go.uber.org/fx"
"go.uber.org/fx/fxtest"
)
// TestFlushOnShutdown proves the flush-on-shutdown path: a
// report appended after start but before the periodic flush
// window must reach disk when the fx lifecycle stops. This is
// the exact case that silent data loss on restart used to
// destroy.
func TestFlushOnShutdown(t *testing.T) {
dir := t.TempDir()
t.Setenv("DATA_DIR", dir)
var buf *reportbuf.Buffer
app := fxtest.New(t,
fx.Provide(
globals.New,
logger.New,
config.New,
reportbuf.New,
),
fx.Populate(&buf),
)
app.RequireStart()
err := buf.Append(map[string]string{"probe": "shutdown"})
if err != nil {
t.Fatalf("append report: %v", err)
}
// RequireStop runs the reportbuf OnStop hook, which is the
// only code path that flushes buffered reports on shutdown.
app.RequireStop()
if !hasReportFile(t, dir) {
t.Fatal("no report file on disk after shutdown; " +
"the buffered report was lost")
}
}
// TestFailedFinalFlushFailsStop proves a final flush that cannot
// write its file makes the stop fail, which makes the process
// exit non-zero instead of dropping the buffered reports silently.
func TestFailedFinalFlushFailsStop(t *testing.T) {
dir := t.TempDir()
t.Setenv("DATA_DIR", dir)
var buf *reportbuf.Buffer
app := fxtest.New(t,
fx.Provide(
globals.New,
logger.New,
config.New,
reportbuf.New,
),
fx.Populate(&buf),
)
app.RequireStart()
err := buf.Append(map[string]string{"probe": "shutdown"})
if err != nil {
t.Fatalf("append report: %v", err)
}
// Removing the data directory leaves the final flush nowhere to
// write. A read-only directory would not do: tests run as root
// in the backend image, and root ignores the read-only bit.
err = os.RemoveAll(dir)
if err != nil {
t.Fatalf("remove data dir: %v", err)
}
err = app.Stop(t.Context())
if !errors.Is(err, fs.ErrNotExist) {
t.Fatalf("stop error = %v, want the final flush's error", err)
}
}
func hasReportFile(t *testing.T, dir string) bool {
t.Helper()
entries, err := os.ReadDir(dir)
if err != nil {
t.Fatalf("read data dir: %v", err)
}
for _, e := range entries {
if strings.HasSuffix(e.Name(), ".jsonl.zst") {
info, statErr := e.Info()
if statErr != nil {
t.Fatalf("stat %s: %v", e.Name(), statErr)
}
if info.Size() > 0 {
return true
}
}
}
return false
}